Method of making prepared roofing.



W. F. McKAY. METHOD 0E MAKING PREPARED RooFlNG.

APPLICATION FILED OCT. I9, 1915.

v Patented Apr. 30, 1918.

EQ 3 SHEETS-SHEET l.

W. F. MCKAY.

METHOD 0F NIAKING PREPARED ROOFING.

` APPLICATION FILED ocTIIs. I9I5.

. Patented Apr. 309 19H8.

3 SHEETS-SHEET 2.

IIIIIWAII "II?" illiiliilllmllllllll D' W. F. MCKAY.

I METHOD 0F MAKING PREPARED ROOFING. l

Y APPLICATION FILED OCT. I9. 1915. mm Patented Apr. 30,1918.

3 SHEETS-SHEET 3.

mmmiuqpnmminmm 53 WILLIAM F. MOKAY, 0F LA GRANGE, ILLINOIS.

METHOD 0F MAKING PREPARED ROOFING.

Specification of Letters Patent.

Parenteel apr. so,` raie.

Original application led May, 5, 1913, Serial No. 765,445. Divided andthis application led October 19,

To all whom it may concern.'

Be it known that I, `W1LL1AM F. MGKAY,

a citizen of the United States, residing at4 La Grange, in the county ofCook and State of Illinois, have invented certain new and usefulImprovements in Methods ofMaking Prepared Roofing, of which thefollowing is a specification. My invention relates to improvements inprepared roofing material.

One of the objects of my invention is to provide a method for themanufacture of roofing material which shall have the appearance of tileor slate when applied to the color in imitation of separate pieces orplates of slate or tile as they appear when laid upon the roof,

In manufacturing ymy improved rooting I use a machine through which thefelt is con* tinuously passed. It enters the machine from the roll atone end and is discharged therefrom at the other end in the finishedproduct.

In the drawings- Figure 1 shows a central longitudinal section of amachine of this character;

Fig. 2 is a plan View thereof;

Fig. 3 is an enlarged detail of the construct-ion, part thereof being insection;

Fig. 4 is an enlarged detail in plan view of part of 'the structure; I

Fig. 5 is an enlarged sectional vlew of part of the machine taken online 5-5 of Fig. 2; Y

Fig. 6 is a plan view of a part of the strip as it passesthrough themachine; u

Fig. 7 is a front view of the roof'as it will appear when my roofingmaterlal` 1s applied thereon; and

Fig. 8 is a sectional elevation of a portion of the roof and the roofingmaterial as it 1s applied.

In all the views the same reference characters are employed to indicatesimilar parts.

rIhis is a divisional application from my the Serial No. 56,685.

copending application, Serial No. 765,445, filed May 5th, 1913, forroofing material- 10 is ya roll of felt or other suitable fabric beforeit passes through the machine, 11 is the felt sheet passing through themachine, and 12 is a tank containing asphaltum 13, or thc like, adaptedto be heated by steam coil 14. The felt sheet passes over the rollers15-15 and under the rollers 16'16 so as to be completely submerged inthe coating material contained in the tank 12. 'Ihe material containedin the tank 12 may be of a compound that is adapted readily to saturatethe felt and may be heated to such a deety gree as is found Amostexpedient for this purf' pose. 17 and l7aare adjustable doctors orScrapers for scrapingl o f the excessive material from the sheet of feltas it passes through the tank. The sheet now passes through another tank18 which contains a compound 19 made, preferably, of a mayterial towithstand a greater temperature to any desirable temperature, and adoctor l or scraper 23 is adjustable to bear with greater or lesspressure against the under' surface 0f the strip 11 to remove more orless of the deposited material from the under surface of the sheet. Ablower 24 is adapted to cool the sheet, or the upper surface thereof, asit passes out of the tank 18 and before the deposit of any materialthereon. The blower is driven from the pulley 25 by the chain or belt26. Followingthe blower is a. series of hoppers 27 each provided withreduced outlets 28 and each containing a supply of sand or. othersuitable granular or flake material 29. The apices or discharge-openings are spaced apart a distance corresponding with the distancebetween the stripes that are to be made on finished product. Anyconvenient method of controlling the liow of the-sand from the hoppersmay be employed. The sheet l1 moves forward toward the right hand side,being driven by the machinery illustrated, consisting of the rollers 36and 37 driven by the traveling apron 80 carried by the chain 81 thatpasses overa sprocket` wheel 82, secured to the shaft 83. A belt 85drives the wheel 84 and thus power is supplied for moving the fabricthrough the machine. While so moving, small and uniform streams ordeposits of sand are made upon the upper surfaces of the sheet. Theselstreams of sand pass underneath the hopper 30 containing a rotatingperforated drum 31.

The drum is rotated by means of a chain 32 from the driving shaft 34which contains a driving wheel 35.

similar material, and as the sheet passes under this rotating drum athin coating of slate is deposited upon the upper surface of4 the sheet.The little ridges or mounds of sand prevent the slate from sticking tothat portion of the felt 4fabric covered by the sand.

After the slate has been deposited upon the sheet it is then passedbetween rollers 36 and 37 which cause the finely divided materials to bepartially embedded into the upper mastic surface of the roofingmaterial. The sand, having been deposited upon the material, before theslate, is embedded into the mastic material and the color of theasphaltum strikes through the sand making a relatively black stripe. Theslate between the stripes, however, is not so discolored and retains itsnatural. appearance. The black intermediate surface being en tirely andevenly covered by the slate flakes does not affect the slate color andtherefore meansof a screw 38, it passes under a roller 39 and then overa relatively large wheel 40.

' This wheel may be located at some remote point so that considerablematerial may be included between the wheels 39 and the rollers 41 and 42between which the sheet again passes. The object of passing the sheetover j the wheel 40 is to give it time to cool before it passes into thevat 43 which contains a water bath 44. Theroller 45 has a tendency tosubmerge the sheet in the water but it is freely movable into verticalposition by the sheet.

After the sheet passes through the water vat it then passes between thedriving rollers 46 and 47 which are also adjustable by the screw,tensioning device 48.

After the sheet has been made, in the manner heretofore described,` itmay be de- The drum 31 is filled i with finely divided slate Hakes, orother sirable to cut it into strips of uniform lengths, transversely ofthe sheet. I, therefore, kfor this purpose, provide a cutting machine 49driven by belt 50. The driving shaft 51 upon which is mounted thedriving pulley 52 rotates constantly. It carries a spur gear 53 whichmeshes into a gear wheel 54 that is carried on a shaft 55. The wheel 54also carries the crank arm 56. Pro'ecting upwardly from the table of themachine are knife guides 57 and 58 within which reciprocate a frame 59,which carries a cutting knife blade 60 and a kerting blade 6l. Theseblades are adjustable in the frame by means of screws 62. A slotted link63 connects the frame 59 to the crank arm 56. There are two such slottedlinks, one on each side of the frame, and there are also two crank arms56 properly driven by the shaft 55. The rollers 46 and 47 are driven bymeans of two gears 64 and 65 carried by the shafts 67 and 68respectively. These rollers are rotated periodically by means of theratchet wheel 69 that is secured to the shaft 68. The slotted llink 63,at its lower end, is pivotally connected to a link 70, and this link inturn is connected, as at 72, to an arm 71, which swings on the' shaft68. The link 71 carries a pawl that engages in the ratchet teeth of -thewheel 69. A stop pawl 74 prevents the return of the ratchet wheel whenmoved forward by means of the p'awl 73. Now when the shaft 55 is rotatedanti-clockwise the crank arm 56 is raised and thereby, through theconnecting link 63, the knife frame 69, carrying the knife blades 60 and61, is raised in the frame 67 and 68 at the same time the ratchet wheel69 is rotated anti-clockwise, by means of the pawl and ratchetconnection, and the rollers 46 and 47 are rotated in such direction astocause the strip 11 to be moved to the right and to project beyond theblade 60 to the extent desired for the proper width of the finishedstrip. Vhen the crank arm 56 has arrived at its highest position theknives will have reached the uppermost p0- sition in the guides 57 and58 and the sheet 11 will have been moved to its fullest extent under theknife. Now when the shaft 55 completes the other half revolution thecrank 56 will have moved back to its normal position, that shown in Fig.3, and the swinging arm 71 will have moved back to its position causingthe pawl 73 to move over the ratchet teeth contained in the ratchetwheel 69 without moving the rollers 46 and 47 at the same time theblades 60 and 61 will have descended and the knife 60 will have severedthe sheet into strips and the blade 61 will have made a kerf or scoreinto the upper surface of the strip at a predetermined distance backfrom its marginal edge for a purpose to be hereinafter described. Thestrip will. then fall from the knife upon the apron 75 from which itwill pass to the conveyer 76. There will be suflicient slack of thesheet 1l contained in the tank 43 to permit its forward movement underthe knife, at` all times. Whenthe sheet is thus moved forward, theroller45 inthe 'tank 43 may be raised, but as the sheet continues to move, themachine causes more sheet to pass into the tank 43, and the roller 45will gradually be lowered into the tank.

The kerng orscoring knife blade 61 has a blunt edge and passes only partof the way through the sheet, vsufficiently however to penetrate theslate,thereby providing a kerf or score 77 which extends across thestripes and provides a weakened line or bending edge whereby themarginal portion beyond the score may be folded under the main stripwhen laying the material on the roof,l as shown in Fig. 8. By cuttingthrough the mastic deposit and the finely divided mineral material, thestrip may thus be folded without cracking or breaking the fabric. v`When laying the shingle simulating material the strip-is placed uponthe roof and the two finished surfaces are laid one upon the other andnails 79 are driven through the part divided bythe kerf or score and theupper marginal edge of the underlying strip and then the major portionof the finished strip 78 is turned back over that portion thereof thathas been nailed to the roof support and another strip is thus nailed toits marginal edge, thus providing a joint and protecting the nails, bywhich the material is secured to the roof, against the e'ect of moistureand weather.

ln Fig. 7 the underlying edge of the strip is shown in dotted lines andthe nails which penetrate through the two underlying marginal edges ofthe respective strips are also shown in dotted lines.

Having described my invention, what lf claim is:

l. rlhe method of making roofing material which consists in continuouslydeposit.

ing a mastic weatherproof material on a continuously moving absorbentsheet; then depositing thereon nely divided granular or flaky material;then applying pressure to said sheet to partially embed said materialtherein; then cutting the'sheet transversely into strips ofpredetermined lengths.

2. The method of making roofing matei rial which consists incontinuously depositing a mastic weatherproof material on a continuouslymoving absorbent sheet; then depositing thereon nely divided granular orflaky material; applyingpressure to said sheet and material; scoring andsimultaneously cutting the sheet transversely into strips ofpredetermined lengths.'

3.-,'llhe methodof making roofing material which consists incontinuously depositing a mastic weatherproof material on a continuouslymoving absorbent sheet; then depositing thereon a plurality ofrelatively small streams of comminuted material; then v depositing onand across the entire upper surface of said sheet, flaky or granularmaterial substantially una'ected in color by the underlying masticmaterial; then -applying pressure to said sheet and deposited material.

4. The method of making roofing material which consists in continuouslydepositing amastic weatherproof material on a continuously movingabsorbent sheet; then depositing thereon a plurality of relatively smallstreams of comminuted material; then depositing on and across the entiresurface of said sheet flaky or granular material substantiallyunaffected in color by the underlying mastic material; then applyingpressure tosaid sheet and deposited material; then cutting said sheetinto strips of predetermined lengths.

5. 'llhe method of making ornamental sheets of material for roofing orthe like which consists in continuously moving the sheet; applyingthereto while moving a water-proofing' adhesive material; thendepositing thereon a. plurality of separated relatively small streams ofcomminuted material, leaving intervening spaces with the water-proofingadhesive exposed; then depositing on and lacross the surface of saidsheet and streams a contrasting granular or flaky material substantiallyunadected in appearance by said adhesive, then Compressmg said strip tosubstantially uniform thickness.

6. A method of making roofing elements which consists in embedding'longitudinal stripes of crushed mineral material in the adhesivecoating of a sheet of roofing material, and then cutting said sheettransversely to form strips having said stripes crossv wise thereon.

7. A method of making roofing elements,`

which consists in applying an adhesive'to the face of an elongatedfibrous sheet,emy bedding lines of crushed mineral material in saidadhesive to form longitudinal stripes,

and then cutting said sheet transversely to form sections of the samewidth and length.

8. A method of making roofing elements, which consists in applyin anadhesive to the face of an elongated brous sheet, em-

bedding lines of crushed mineral material in 1 said adhesive to formlongitudinal stripes,

embedding crushed mineral material of another color'in the uncoatedportions of said adhesive to form intervening bands, and

cutting said sheet transversely into shingle strips.

10. A method of making roong'elements, which consists in applyin anadhesive to the face of an elongated brous sheet, embedding lines ofcrushed mineral material in said adhesive to form longitudinal stripes,embedding crushed mineral material ,of another color in the uneoatedportions of said adhesive to form intervening bands, and cutting saidsheets into sections each having said stripes and bands crosswise of itslength. n, I y

l1. The method of making roofing elements, which consists of moving anelongated sheet of fibrous material lengthwise," applying thereto acoating of waterproof adhesive substance, passing said sheet underseparated streams of crushed mineral material to cause said material toadhere in stripes to said adhesive substance, pressing said materialinto the said coating, and then cutting said sheet transversely intosections.

12. The method of making roofing elements, which consists of moving anelongated sheet of fibrous material lengthwise, applyingl thereto acoating of waterproof adhesive substance, passing saidl sheet underseparated streams of'crushed mineralmaterial to cause said material toadhere in stripes to said adhesive substance, then passingsaid sheetthrough a shower of crushed mineral material of a different color tocause said material to adhere to said coating between said stripes, andremoving the surplus crushed mineral material.

13. The method of making roofing elements,. which consists of moving anelongated sheet o fibrous material lengthwise applying thereto a coatingof waterproot adhesive substance, passing said sheet under separatedstreams of crushed mineral mal terial to cause said` material to adherein stripes to said adhesive substance, then passing said sheet through ashower of crushed mineral material of a different color to cause saidmaterial to adhere to said coating be# tween said stripes, and thensevering said sheet erosswise into sections of substantially the samelength and width.

14;. A method of making waterproof roofing, which consists of applying awaterproof adhesive to the face of a ibrous sheet,

` passing said sheet under separated streams of crushed mineral materialto cause said material to adhere in lines to the face of saidfoundation, and embedding said material in the adhesive coating.

l15. A method of making roofing elements, which consists in passing asheet of tibi-'ous material having an adhesive waterproof coatingbeneath separated streams of crushed mineral material to cause saidmaterial to adhere thereto in lines or stripes, and then passing saidsheet under other streams of dierently colored grit, to cause saidlastmentioned material to adhere to the adhesive coating in other linesor stripes.

16. A method of making roofing elements, which consists in passing asheet of brous material having an adheslve waterproof eoating beneathseparated streams of crushed mineral material to cause said material toadhere thereto in lines or stripes, then passing said sheet under otherstreams of differently colored grit, to cause said lastmen tionedmaterial to adhere to the adhesive coating in other lines or stripes,removing the surplus grit, and embedding the remaining grit in the saidadhesive coating.

17. The method -of making roofing elements which consists in embeddingconventional patterns of crushed mineral material in the adhesivecoating of a sheet of roofing .f material; then scoring the sheettransversely near one edge and simultaneously cutting the sheet parallelto the scoring, into strips.

In testimony whereof I hereunto set my hand in the presence of twosubscribing witnesses.

WILLIAM F. MCKAY. Inthe presence oif-- FORE BAIN, MARY F. ALLEN.

